Confirmatory Tests vary, and may be wrong from time to time. As time passes, the test is not as reliable as stated. If the so called "blood" is on a leather surface, blood isn't too prone to sticking to leather, so it may (or may not) be blood.
Answer:
Rickets disease.
Explanation:
Rickets disease occurs when there is a mineralization deficit of the extracellular bone matrix; as a result, the bones are soft, and they deform easily. The X-rays show thick epiphyseal plates because it is hyaline cartilage that should be calcified to become a bone. As there is a deficit of vitamin D, the mineralization of the plate can not be done, making bone is flexible and deformable.
The main cause for Rickets disease is a diet with low intakes of calcium and vitamin D, and poor exposition to the sun, which is the best way to produce vitamin D. These two components are crucial for the mineralization of the bones.
